Metering-panel.



i 1,0 5, Patented Dec.- 10,191 2.

H. F. KRANTZ. 1 METERING PANEL. APPLICATION FILED OUT. 20, 1911.

H. F. KRA'NTZ.

METERING PANEL. APPLLOATIOK FILED OCT. 20, 1911.

1,047,085. Patented Dec. 10, 1912.

' v I v z SHEETS-SHEET 2.

30 v 3% 1" QYL i i I 11 4091? 2 02" UNITED sTArEs Henna! F. KRAN'IZ, orNEW YORK, n. Y.

" METERING-PANEL.

Specification of Letters Patent.

Application filed October 20,1911.

h Patented Dec. 10, 1912. Serial No. 655,765.

' To all whom it may] concern.

HUBEn'r F. Kinm'rz, a citizen of the United States, residing atBrooklyn, in the county of Kings, city and State of New York, haveinvented certain new and useful Improvements in Metering- Panels, ofwhich the following is aclear, full, and exact description.

This invention relates to meter panel boards, and particularly to thattype of board shown in my Patent 961,142 of June l-lth 1910.

The object of the invention is to provide a switch connecting the branchcircuits with the main circuits, which will cause each circuit to bebroken on both of its legs at the same time, at the time ofdisconnecting the meter from the circuit.

A further object is to provide an improved selective contact mechanismfor the connection of meter bars with the individual circuits.

Other objects of the invention relate to the general and specialconstruction and arrangement of parts.

The scope of the invention will be pointed out in-the appended claims.

In the accompanying drawings: Figure l is a face View of a meter panelbuilt in accordance with this invention. cFig. 2 is an Be it known thatI.

end View of the same, drawn to an enlarged scale. Fig. 3 is a section online 3-3 Fig. 4. Fig. 4t '1s a central sectional side elevation of therings on the drum, the drum be? ing shown in side elevation. Fig. 5 is asec tion on line 5-5 Fig. 1. Fig. 6 is a top plan \lOW of one of therings.

As shown in the accompanyin drawings, 1 is the back plate of slate, mar'le or other insulating material.

2 and 3 are the main conductor connections. I

.t is the neutral connection.

5 IS a switch connecting 2, 3 and 4t with bus bars 6, 7 and 8.

9 is a conductor leading to the meter 10.

11 is a conductor from the meter to a cross bar 1.2 connected by a fuse13 with the bus bar 8.

14 is a conductor connected with the meter bar 15 to be hereinafterdescribed.

The parts already. described are similar to those shown in my aforesaidUnited S ates Letters Patent.

16 and 17 represent branch circuit cou- -enter and pro wrly The block 32is so nections for the two polarities of each branch section 18, onebeing indicated.

19 and 20 are the fuses for each branch circuit connection each tuseterminating in afuse clip, having extended therefrom connector pieces21, as the case may be, the connector pieces 21. being oi. greaterheight than the connector pieces 22. but both being bent over to formcars 23, 23 to be engaged by split jaws 24 mounted on an axiallyrotatable insulated switch shank The switch blades which connect withthe bent end .Zti'have their other ends turned inwardly as shown at 25,so that they may contact with slotted rings .26 hereinafter described.The conductor blades 24 which,contact with the car 23 have their otherends at 27 flared outwardly to engage with a bent-over ear 28 secured tothe bar 29, which is one leg of the neutral bar 7. This log 29 of theneutral bar has its corrcspmidin'g leg on the other side of the board,as do all the parts described. They are however, placed nearer togetherthan shown in my prior patent, so as to lie below and behind the drum,or rings hereinafter described. As the switch blades 24 are mounted withsome distance between, it will be seen that a simple manipulation of theswitch will. disconnect both sides of the branch circuit.

As shown in my prior patent the meter bars 15 are brought in "from thesides of the board, and raised in a series of steps as indicated in Fig.5, the steps being of different height and. cntering'a drum 30 ofinsulating material the bars are arranged along the outside of the drum,and parallel to its axis, each meter bar preferably being of T crosssection, and having a dished exposed outer surface 31 with which theremay contact a shoe 32 carried by an insulating ring 38. The shoe 32 isheld in contact with the bars by a spring 34 surrounding a post 35passing through a. bearing 36 fastened by screws 37 to an extending lug38 of the ring 26, said ring being provided at equally spaced distancesaround its circumference with open jaws 39 adapted to be engaged withthe contact blades 24: of the switch. placed with reference to the jawsthat it will always connect agiven. meter bar when one of the jaws 39 isexactly and precisely opposite the switch arm so that to operate theswitch will insure a proper registry of the connecting shoe with themeter bar. In order .to determine which of the meter boards shall beconnected with switch between the branch circuit and theselectivecontact device and bus bar, Where- -by any one of the plurality ofswitch engaging contacts can be brought into a position to engage withthe proper switch contact.

2. The herein described panel board consisting of a back board, bus barsand cross bars, meter bars grouped around a common center, a selectivecontact device adapted to contact with any one of said meter bars,branch circuits, a double poled switch between the branch circuits andthe selective contact device and bus bar, and means carried by theselective contact device to permit the operation of the switch only whenthe selective contact device is in engage ment with a meter bar.

3. The herein described panel board consisting of a back board, bus barsand cross bars, meter bars grouped around a common center, a selectivecontact device adapted to contact with any one of said meter bars,branch circuits, a double poled switch'between the branch circuits andthe selective contact device and bus bar, and means car ried by theselective contact device to perdrum, a shoe carried by the ring adaptedto contact with a meter bar, engagement points spaced about the ringadapted for engagement with a switch arm, one of said bus bars having acontact located beneaththe point of engagement of the switch and se-'lective contact ring, branch circuit contacts in two planes, and aswitch having contact arms in two planes one adapted to engage a vbranch circuit leg'and bus bar connection, and the other adapted toengage a branch circuit leg and selective contact ring.

5.'The herein described panel consisting of cross bars, bus bars, meterbars and a selective contact device adapted to contact with any one ofthe meter bars, said contact device being movable, and adapted to bebrought into operative position adjacent to a branch circuit connection,a switch between said branch. circuit connection and selective contactdevice adapted not only to electricallyconnect said contact devicelwithbranchcircuit, but to lock said selective con tact device in position.

Signed at Brooklyn, New York, this fourteenth day of October, 1911.

HUBERT F. KRANTZ. Witnesses:

GEO. W. EcKERsoN, J. F. MCGUIRE.

Copies of this patent may be obtained torfive cents each, by addressingthe Commissioner of Patents,

1 Washington, D. 0.

